Ehara te whakaritenga paipa tika "10D ki runga, 5D ki raro" i te ture tino mō ngā mita rere ultrasonic whakapiri, engari he aratohu whānui hei whakarite i te tika o te ine. Ko te roa paipa tika e hiahiatia ana ka whakawhirinaki ki ngā āhuatanga pēnei i te momo raruraru rere, te mātāpono ine (te rerekētanga wā me te Doppler), me ngā whakaritenga tika o te tono.
1. He aha i tūtohutia ai te "10D Upstream me te 5D Downstream"?
Ka tatauhia e ngā mita rere ultrasonic te tere rere i runga i te wā horapa (tikanga rerekētanga-wā) te nekehanga auau rānei (tikanga Doppler) o ngā ngaru ultrasonic i roto i te wai. Ka whakawhirinaki tēnei ki te rere pūmau, tino whanake (ko te mea pai, he tere ōrite puta noa i te wāhanga whakawhiti o te paipa).
Ka whakararuraru ngā hononga pēnei i ngā tuke, ngā tī, ngā takirere, ngā whakaiti rānei i te āhua o te rere (ka puta he āwhiowhio, he porowhita, he tohatoha tere kore taurite rānei), ka puta ai he hapa ine. Mā te aratohu "10D ki runga + 5D ki raro" ka nui te wāhi hei whakau anō i te rere kua whakararuraruhia i mua i te urunga ki te wāhanga ine o te mita.
2. Ngā Whakarerekētanga Ngāwari: Āhea te "10D/5D" ka taea te whakangāwari, me te whai rānei i te tikanga?
Ka rerekē te roa o te paipa tika e hiahiatia ana i runga i ngā āhuatanga motuhake, e whakaaturia ana i te ripanga i raro nei:
| Horopaki | Te Roa Paipa Tika e Hiahiatia ana | Pūtake |
|---|---|---|
| Ngā raruraru rere ngawari (hei tauira, ngā tuke 90° te roa o te radius, ngā takirere kuaha tuwhera katoa) | Te awa whakarunga: 5D–8D I raro: 3D–5D | Ka tere ake te memeha haere o ngā raruraru ngawari; he nui ngā paipa poto, tika hoki hei whakau i te rere. |
| Ngā raruraru nui o te rere (hei tauira, ngā tuke poto-radius 90°, ngā takirere porowhita, ngā tī) | Awa whakarunga: ≥10D I raro iho: ≥5D | He roa ake te tawhiti e hiahiatia ana mō ngā awhiowhio/pōrori nui kia hoki ai ki te rere pumau. |
| Ngā tono iti-tika (hei tauira, te aroturukitanga tukanga whānui, te aroturukitanga rere kore-tino nui) | Awa whakarunga: 3D–5D I raro: 2D–3D | Mā te manawanui ki ngā hapa iti (±3%–±5%) ka nui ake te ngāwari. |
| Ngā tono tino tika (hei tauira, te whakataunga tauhokohoko, te ine pūngao, te horopeta rongoā) | I runga ake: 10D–15D I raro iho: 5D–8D | Ko ngā whakaritenga tino tika (±1%–±2%) e hiahia ana ki ngā tikanga rere tata ki te tino pai. |
| Ngā mita whakapiri momo-Doppler | He ngāwari ake (hei tauira, te 5D–8D o runga) | Kāore i te tino pāngia ngā mita Doppler e te kore taurite iti o te kōtaha rere, pērā i ngā mita rerekētanga-wā. |
3. Ngā Otinga Ina Kāore e Rawa te Roa o te Paipa Tika
Mena he iti te wāhi o ngā paipa, ā, kāore e taea te whakatutuki i te "10D/5D", ka taea e ēnei mahi te whakaiti i te raruraru o te rere me te whakapai ake i te tika:
- Tāutahia ngā whakangawari rere: Ka taea e ngā taputapu pēnei i ngā paihere ngongo, ngā honikoma, ngā pereti kōhao rānei te whakatika i te rere kua whakararuraruhia i ngā tawhiti poto (ka whakaiti i te paipa tika e hiahiatia ana i runga ake ki te 3D–5D).
- Whakaritea te wāhi tāutanga pūoko: Kaua e tāuta ngā pūoko ki raro tonu i ngā raruraru; ki te taea, whakanohoia ki runga ake i ngā tuke/takirere (he iti ake te pānga o ngā raruraru ki runga i te awa i ērā ki raro).
- Whakatikatika i te mokowā/koki o te pūoko: Mā ētahi mita whakapiri matatau ka taea te whakatikatika i te tawhiti o te transducer, te koki hihi rānei hei whakatikatika i ngā hapa iti o te kōtaha rere.
- Whakamahia ngā pūoko maha-ara: ka inehia e ngā mita rawhi-ara 2, 4 rānei te tere i ngā pūwāhi maha puta noa i te wāhanga whakawhiti o te paipa, ka toharitehia te kore ōrite o te kōtaha rere ki waho e hua mai ana i te koretake o te paipa tika.
Whakamutunga
Ahakoa he tūāpapa haumaru te "10D ki runga, 5D ki raro" mō te nuinga o ngā āhuatanga ahumahi, kāore ngā mita rere ultrasonic e hiahiatia ana tēnei roa i ngā wā katoa. Ko te mea nui ko te whakataurite i te roa o te paipa tika ki te taumata raruraru rere me ngā hiahia tika o te tono. Mēnā he iti te wāhi, ka taea e ngā kaiwhakatikatika rere, ngā pūoko maha-ara rānei te whakakapi i te koretake o te paipa tika, kia pono ai te mahi ine.
Wā tuku: Hepetema-04-2025